Validation of sea ice concentration - American sector
Bulletin date: 2023-08-03
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-07-28:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8842 |
7509 |
426 |
705 |
121 |
6 |
0 |
0 |
| OW |
0 |
91 |
165 |
1738 |
218 |
0 |
0 |
0 |
| VODI |
0 |
16 |
2 |
3112 |
2556 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
126 |
6300 |
694 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1924 |
7796 |
1594 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
51 |
1531 |
343 |
0 |
|
...date precedes bulletin
|
Date: 2023-07-30:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9406 |
7425 |
509 |
878 |
109 |
3 |
0 |
0 |
| OW |
0 |
173 |
235 |
2214 |
253 |
0 |
0 |
0 |
| VODI |
0 |
14 |
7 |
2449 |
2969 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
85 |
4883 |
1429 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
1334 |
6416 |
2601 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
39 |
783 |
1647 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-01:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9765 |
7910 |
610 |
821 |
116 |
3 |
0 |
0 |
| OW |
0 |
66 |
161 |
1302 |
136 |
0 |
0 |
0 |
| VODI |
0 |
2 |
5 |
3365 |
1567 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
172 |
6222 |
280 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
859 |
5472 |
217 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
20 |
375 |
3193 |
3215 |
|
...date precedes bulletin
|
Date: 2023-08-03:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9609 |
8573 |
689 |
841 |
87 |
0 |
0 |
0 |
| OW |
0 |
64 |
205 |
1592 |
158 |
0 |
0 |
0 |
| VODI |
0 |
2 |
1 |
3501 |
1514 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
99 |
5339 |
232 |
0 |
0 |
| CDI |
0 |
0 |
0 |
24 |
1286 |
3982 |
1235 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
41 |
597 |
3774 |
2401 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9609 |
8560 |
724 |
1029 |
111 |
0 |
0 |
0 |
| OW |
0 |
77 |
156 |
1559 |
147 |
0 |
0 |
0 |
| VODI |
0 |
2 |
15 |
3179 |
1543 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
266 |
5217 |
238 |
0 |
0 |
| CDI |
0 |
0 |
0 |
27 |
1368 |
3955 |
1210 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
39 |
618 |
3799 |
2401 |
|
Date: 2023-08-05:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10278 |
8506 |
579 |
934 |
46 |
0 |
0 |
0 |
| OW |
0 |
223 |
190 |
1753 |
174 |
0 |
0 |
0 |
| VODI |
0 |
9 |
12 |
2579 |
2173 |
97 |
0 |
0 |
| ODI |
0 |
0 |
0 |
90 |
4290 |
747 |
0 |
0 |
| CDI |
0 |
0 |
0 |
38 |
913 |
3518 |
2684 |
98 |
| VCDI |
0 |
0 |
0 |
2 |
19 |
1499 |
4040 |
375 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10278 |
8592 |
624 |
1132 |
62 |
0 |
0 |
0 |
| OW |
0 |
142 |
144 |
1590 |
344 |
0 |
0 |
0 |
| VODI |
0 |
4 |
13 |
2484 |
2140 |
105 |
0 |
0 |
| ODI |
0 |
0 |
0 |
150 |
4126 |
688 |
0 |
0 |
| CDI |
0 |
0 |
0 |
38 |
924 |
3550 |
2626 |
89 |
| VCDI |
0 |
0 |
0 |
2 |
19 |
1518 |
4098 |
384 |
|
Date: 2023-08-07:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10890 |
8379 |
775 |
885 |
107 |
0 |
0 |
0 |
| OW |
0 |
93 |
182 |
1097 |
105 |
0 |
0 |
0 |
| VODI |
0 |
3 |
1 |
3643 |
482 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
137 |
4788 |
220 |
0 |
0 |
| CDI |
0 |
0 |
0 |
19 |
541 |
6798 |
277 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
19 |
691 |
4437 |
1296 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10890 |
8339 |
780 |
1465 |
154 |
0 |
0 |
0 |
| OW |
0 |
130 |
166 |
1813 |
206 |
0 |
0 |
0 |
| VODI |
0 |
6 |
12 |
2367 |
2060 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
116 |
3035 |
1404 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
551 |
4882 |
1772 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
36 |
1414 |
2942 |
1296 |
|
Date: 2023-08-09:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10709 |
9409 |
650 |
825 |
38 |
0 |
0 |
0 |
| OW |
0 |
130 |
278 |
1297 |
89 |
0 |
0 |
0 |
| VODI |
0 |
14 |
9 |
3201 |
792 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
184 |
4267 |
165 |
0 |
0 |
| CDI |
0 |
0 |
0 |
32 |
1210 |
5298 |
1170 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
21 |
854 |
3231 |
1991 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10709 |
9356 |
731 |
1551 |
49 |
0 |
0 |
0 |
| OW |
0 |
181 |
189 |
1727 |
242 |
0 |
0 |
0 |
| VODI |
0 |
16 |
17 |
2128 |
2124 |
11 |
0 |
0 |
| ODI |
0 |
0 |
1 |
100 |
3311 |
861 |
0 |
0 |
| CDI |
0 |
0 |
0 |
17 |
637 |
4688 |
1679 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
54 |
757 |
2722 |
1991 |
|
Date: 2023-08-11:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12077 |
8577 |
536 |
691 |
52 |
0 |
0 |
0 |
| OW |
0 |
253 |
421 |
1417 |
93 |
0 |
0 |
0 |
| VODI |
0 |
11 |
52 |
2986 |
637 |
30 |
0 |
0 |
| ODI |
0 |
0 |
1 |
555 |
3778 |
142 |
0 |
0 |
| CDI |
0 |
0 |
0 |
44 |
1593 |
5439 |
737 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
28 |
594 |
3974 |
1146 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12077 |
8581 |
730 |
1608 |
70 |
0 |
0 |
0 |
| OW |
0 |
227 |
223 |
1627 |
228 |
0 |
0 |
0 |
| VODI |
0 |
33 |
56 |
2239 |
1685 |
56 |
0 |
0 |
| ODI |
0 |
0 |
1 |
175 |
3308 |
513 |
0 |
0 |
| CDI |
0 |
0 |
0 |
40 |
847 |
5192 |
2006 |
42 |
| VCDI |
0 |
0 |
0 |
5 |
43 |
444 |
2705 |
1105 |
|
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